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Results 521 - 530 of 598 for Laser Systems
  • What is an Aperture?
    Article - 6 Oct 2014
    An aperture is an opening or a hole through which light passes by. In an optical system, the aperture is the opening that defines the cone angle of a set of light rays that converges at a focal point...
  • Meniscus Lens and Their Application
    Article - 19 Sep 2014
    Meniscus lens is a lens having two spherical curved surfaces, convex on one side and concave on the other side. It is thicker at the center than at the edges. The lens provides a smaller beam diameter...
  • Aiming Beam and Coaxial Laser Beam
    Article - 19 Sep 2014
    An aiming beam is a laser beam (or any other light source) which is used as a light for guiding.
  • Exploring the Molecular Nature of Memory with Imaging Technology
    Article - 9 Sep 2014
    Wei Min, Assistant Professor at Columbia University and his team have investigated the synthesis of protein at a specific site in the tissue of the brain using a new imaging technique in order to...
  • What is Ultraviolet Light (UV)?
    Article - 5 Sep 2014
    Ultraviolet (UV) light is a portion of the electromagnetic spectrum between the visible rays and X-rays. It lies in the frequency range of 10 to 400 nm with photon energies from 3 to 124 eV.
  • Metastable States - Definition and Applications in Optics
    Article - 20 Jun 2014
    Metastable state is an excited state of an atom or other system with a longer lifetime than the other excited states. However, it has a shorter lifetime than the stable ground state.
  • Beam Profiler - Definition and Applications
    Article - 20 Jun 2014
    Measurement of the optical beam profile is of critical importance in a number of laser applications.
  • Optical Pumping - Definition and Applications
    Article - 19 Jun 2014
    Optical pumping is a process in which light energy is used to excite electrons from a lower to higher energy level. It was first developed by Alfred Kastler in the early 1950s. It is primarily used to...
  • Superpulse Lasers - Definition and Applications
    Article - 19 Jun 2014
    Superpulse is a specific waveform commonly used in CO2 laser systems either in a pulsed or continuous pattern. Superpulsed lasers are capable of emitting several thousand bursts of power per second.
  • Beam Combining - Definition and Applications
    Article - 19 Jun 2014
    Beam combining is done through a number of processes in order to scale up the power and radiance of laser sources. There are a number of techniques that allow the built up of high power laser sources...

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